EP1604066B1 - Ausziehbohle für strassenfertiger - Google Patents

Ausziehbohle für strassenfertiger Download PDF

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Publication number
EP1604066B1
EP1604066B1 EP04718171A EP04718171A EP1604066B1 EP 1604066 B1 EP1604066 B1 EP 1604066B1 EP 04718171 A EP04718171 A EP 04718171A EP 04718171 A EP04718171 A EP 04718171A EP 1604066 B1 EP1604066 B1 EP 1604066B1
Authority
EP
European Patent Office
Prior art keywords
screed
base
carriage
respect
main
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP04718171A
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English (en)
French (fr)
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EP1604066A1 (de
Inventor
Christopher W. Rahn
Michael S. Eppes
Eric Potter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Blaw Knox Construction Equipment Co
Original Assignee
Blaw Knox Construction Equipment Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Blaw Knox Construction Equipment Co filed Critical Blaw Knox Construction Equipment Co
Priority to EP07016652.5A priority Critical patent/EP1854921B9/de
Publication of EP1604066A1 publication Critical patent/EP1604066A1/de
Application granted granted Critical
Publication of EP1604066B1 publication Critical patent/EP1604066B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/14—Extendable screeds
    • E01C2301/16—Laterally slidable screeds

Definitions

  • the present invention relates to a screed assembly for paving vehicles.
  • Screed assemblies for paving vehicles are known and generally include a main screed having a frame connectable with a paver tractor and one or more screed plates mounted to the bottom of the frame.
  • screed assemblies often include extension screeds mounted to the front or rear of the main screed so as to be laterally movable with respect to the main screed.
  • extension screeds provide the capability of forming a wider mat of paving material when the extensions are displaced laterally outwardly and to produce narrower mats when the extensions have been displaced inwardly toward the center of the main screed.
  • EP 1 239 082 A2 discloses an extension screed having a telescoping tube driven by a hydraulic cylinder for extending and retracting the extension screed in the horizontal direction with respect to a screed base member.
  • the telescoping tube is fixedly connected to a cross-bar, such that the cross-bar is movable only in the horizontal direction.
  • a bottom part supports an extension screed plate and is vertically movably connected to the cross-bar via two height adjusting devices.
  • the bottom part is also pivotably attached to the screed base member via a catch arrangement.
  • the extension screed plate can be moved in both the horizontal and vertical directions.
  • DE 100 28 819 A1 discloses the features of the preamble of independent claims 1 and 26 and shows an extension screed assembly having support portions that are vertically movable relative to a main screed by means of a threaded rod. Extension screed supports are respectively connected to the support portions and hydraulic cylinders may be provided to horizontally move the extension screed supports with respect to the main screed.
  • connection is intended to include both direct connections between two members without any other members interposed therebetween and indirect connections between members in which one or more other members are interposed therebetween.
  • the terminology includes the words specifically mentioned above, derivatives thereof, and words or similar import.
  • a screed assembly 1 has a longitudinal centerline 1a extending generally in a direction of vehicle travel (and thus paving operations) and includes a main screed 3 having at least one screed plate 4.
  • the extension screed 10 basically comprises a base 12 movably connectable with the main screed 3 and a carriage 14 movably connected with the base 12 and configured to support a screed plate 11.
  • Two vertical actuator 16 are connectable with the main screed 3 and is configured to linearly displace the base 12 with respect to the main screed 3 in opposing, generally vertical, upward and downward directions V U , V D , respectively.
  • the vertical actuators 16 are also configured to alternatively pivot the base 12 with respect to the main screed 3 within a generally vertical plane P V extending vertically through the base 12 (see Fig. 15).
  • a horizontal actuator 18 is connected with the base 12 and is configured to linearly displace the carriage 14 with respect to the base 12 in opposing, outer and inner, generally horizontal directions H O and H I , respectively, and thus laterally toward and away from, respectively, the screed assembly centerline 1a.
  • the extension screed 10 enables the relative positions of the two screed plates 3 and 11 to be adjustable generally in the following manner.
  • the vertical actuators 16 are configured to displace the base 12 so as to adjust an elevational position of the extension screed plate 11 with respect to the main screed plate 2.
  • the horizontal actuator 18 is configured to displace the carriage 14 so as to adjust a horizontal position of the extension screed plate 11 with respect to the main screed plate 4.
  • the vertical actuators 16 are configured to also pivot the base 12 with respect to main screed 3 so as to adjust a slope angle A S between the extension screed plate surface 11a and the main screed plate surface 4a, as described in greater detail below.
  • the base 12 includes two horizontally spaced-apart base members or portions 20A, 20B, each base portion 20A, 20B being movably connectable with the main screed 3.
  • the extension screed 10 includes the two vertical actuators 16, i.e. a first vertical actuator 17A and a second vertical actuator 17B, each being connected with a separate one of the two base portions 20A, 20B, respectively, and preferably removably mounted to the main screed 3.
  • the two vertical actuators 17A, 17B are configured to linearly displace the connected base portion 20A, 20B, respectively, with respect to the main screed 3 in the opposing vertical directions V U and V D .
  • the carriage 14 and thus the extension screed plate 11 are each substantially vertically displaced with respect to the main screed 3.
  • the carriage 14 and thus the extension screed plate 11 are each substantially vertically displaced with respect to the main screed 3.
  • the carriage 14 and screed plate 11 are alternatively pivoted within the vertical plane P V , as discussed in further detail below.
  • the carriage 14 preferably includes a first, inner section 22 movably connected with the base 12, and thereby connected with the main screed 3 through the vertical actuator(s) 16, and a second, outer section 24.
  • the second carriage section 24 is movably connected with at least the first carriage section 22, and preferably also with the base 12 as discussed below, and is configured to directly support the screed plate 11.
  • the two preferred sections 22, 24 of the carriage 14 are each preferably displaceable along a common axis 25 extending through the entire carriage 14, as discussed in further detail below.
  • the first, inner carriage section 22 includes a first generally rectangular frame 26 that at least partially bounds an interior space S 1 and the base 12 is preferably disposed with the first frame interior space S 1 .
  • the second, outer carriage section 24 preferably includes a second generally rectangular frame 28 that at least partially bounds an interior space S 2 , the first frame 26 being disposeable at least partially within the second frame interior space S 2 such that the second carriage section 24 is displaceable about the first carriage section 26.
  • the second, outer frame 28 is slidably disposed at least partially about the first frame 26 such that the second frame 28 "telescopingly" displaces with respect to the first frame 26 along the axis 25, as discussed in further detail below.
  • the second, outer carriage section 24 provides a carriage outer end 14a spaced laterally from the centerline 1, the outer end 14a defining a variable, laterally-outermost position of the screed assembly 1, as discussed below.
  • the extension screed 10 preferably includes two horizontal actuators 18, specifically a first actuator 19 and a second actuator 21.
  • the first horizontal actuator 19 is configured to linearly displace the first, inner frame 26 alternatively in the two outer and inner horizontal directions H O , H I with respect to the main screed 3.
  • the second horizontal actuator 21 is configured to linearly displace the second, outer frame 28 with respect to the first frame 26 (and thus also with respect to the base 12) alternatively in the two horizontal directions Ho and H I .
  • the two horizontal actuators 19 and 21 are each mounted to the base 12 such that both actuators 19, 21 are at least partially disposed within the first frame interior space S 1 , as described in further detail below.
  • the extension screed 10 having the preferred carriage structure is laterally movable, so as to position the extension screed plate 11 to adjust the width W of a paving mat M formable by the screed assembly 1, in generally the following manner.
  • the second horizontal actuator 21 is configured to displace the second carriage section 24 along the axis 25 such that the carriage outer end 14a moves between a first horizontal position P 1 (Fig. 10), at which the outer end 14a is spaced a first perpendicular distance D 1 from the centerline 1a, and a second horizontal position P 2 (Fig. 11).
  • the carriage outer end 14a In the second horizontal position P 2 , the carriage outer end 14a is spaced a second perpendicular distance D 2 from the centerline 1a, the second distance D 1 being greater than the first distance D 1 .
  • the carriage 14 moves laterally outwardly from the first position P 1 to the second position P 2 , and vice-versa.
  • the first horizontal actuator 19 is configured to displace the first carriage section 22 along the axis 25 such that the carriage outer end 14a moves between the second horizontal position P 2 and a third horizontal position P 3 (Fig. 12).
  • the carriage outer end 14a In the third position P 3 , the carriage outer end 14a is spaced a third perpendicular distance D 3 from the centerline 1a, the third distance D 3 being greater than the second distance D 2 .
  • the main screed 3 has a lateral outer end spaced 3a spaced (i.e., fixedly located) a fourth perpendicular distance D 4 (Fig. 10) from the centerline 1a and at least the second and third distances D 2 , D 3 are each greater than the fourth distance D 4 .
  • the carriage 14 of the extension screed assembly 10 extends laterally outwardly from the main screed 3 when the carriage outer end 14a is disposed in at least one the second and third horizontal positions P 2 , P 3 , respectively, and preferably also when the carriage end 14a is located at the first position P 1 , as depicted in Fig. 10.
  • the extension screed 10 may be configured such that the outer lateral end 14a is spaced inwardly from the main screed outer end 3a, if desired.
  • the carriage 14 may be constructed with only a single section or frame (not shown), such that the carriage 14 only moves between first and second positions P 1 , P 2 (and positionable or locatable at all positions therebetween), as discussed in further detail below.
  • the extension screed 10 of the present invention is preferably used with a screed assembly 1 that is connected to the paving vehicle 2 by a pair of tow arms 5, such that the screed assembly 1 is towed from the rear 2a of the vehicle 2.
  • the vehicle 2 and screed assembly 1 both travel generally along the screed centerline 1a, or more accurately stated, the arrangement of the screed 1 with respect to the vehicle 2 causes the screed assembly 1 to be centered about the line 1a extending longitudinally through the vehicle 2.
  • the extension screed 10 is used as a pair of extension screeds 10 spaced apart laterally so as to be disposed on opposing sides of the assembly centerline 1a, although a single extension 10 may be used if so desired.
  • the extension screeds 10 are each preferably mounted to the front end 3b of the main screed 3 and generally proximal to a separate main screed lateral end 3a, but may alternatively be mounted to the main screed rear end 3b or directly to the main screed lateral walls (not indicated) at each lateral end 3a.
  • the main screed 3 includes a main frame 6 formed of two laterally spaced frame halves 7 pivotally connected at the inner ends 7a of the frame halve 7.
  • the main screed 3 is "crownable" or pivotable about the centerline 1a, but may alternatively be formed of a single, fixedly connected frame or of three or more frame sections (no alternatives shown).
  • each of the preferred frame halves 7 includes a separate screed plate 4 mounted to a lower end of the frame half 7, each main screed plate 4 having a lower working surface 4a.
  • each main screed frame half 7 preferably includes a mounting portion or mount 8 configured to mount the vertical actuators 16, and preferably also the base 12, of one extension screed 10 to the screed 3.
  • Each mount 8 includes a generally vertical base wall 30 providing a section of the screed frame half front wall 7b and two vertically spaced apart mounting plates 31 each extending rearwardly from the base wall 30.
  • Each mounting plate 31 includes two outer bracket sections 32 connected by a central rib section 33, such that the plates 31 provide two pairs of upper and lower aligned bracket sections 32.
  • Two tubular mounting bearings 35 each extend generally vertically between and through a separate one of the two pairs of aligned bracket sections 32 and each has a central bore 36 sized to slidably receive a slide post 40 of each of the preferred base portions 20A, 20B, as discussed in further detail below.
  • each pair of aligned bracket sections 32 includes a pair of upper and lower aligned openings 37, 39 sized to receive a separate one of the two vertical actuators 16, as described below.
  • the extension screed 10 of the present invention may be movably connected to the main screed 3 by any appropriate means.
  • the main screed 3 may only have a single mount 8 (i.e., for mounting either a single or both extension screeds 10) or three or more mounts 8.
  • each extension screed 10 may be connected to the main screed 3 by a separate device, such as a bracket(s), attached to the screed front end 3a, the rear end 3b, or to either side 3c or 3d and configured to connect the base 12 to the main screed 3.
  • the base 12 (and thus the extension screed 10) may be connected with the main screed solely through the two or more vertical actuators 16.
  • the base 12 preferably includes a first, inner base member or portion 20A and a second, outer base member or portion 20B, the two base portions 20A, 20B being spaced apart horizontally with respect to the main screed 1.
  • Each base portion 20A, 20B is preferably removably connectable with the main screed 3, specifically by means of the mounting portions 7, as discussed above, but may alternatively be permanently or non-removably connected with the main screed 3 by any appropriate means. As shown in Fig.
  • the two vertical actuators 17A, 17B may be connected with such a base 12 so as to still be capable of vertically displacing and/or pivoting the extension screed 10, as discussed below.
  • the positions of the base portions 20A, 20B are indicated by reference to a point "p" on each base portion 20A or 20B, the particular points selected having no particular relevance other than as a convenient point of reference for purposes of discussion of the present invention.
  • the base portions 20A, 20B each include a body 38 and a slide post 40 attached to and extending vertically downwardly from the body 38.
  • the base bodies 38 each preferably include a generally rectangular main section 42 and a connective section 44 extending generally horizontally and rearwardly from a rear vertical surface 42a of the body main section 42.
  • the body main section 42 has upper and lower generally circular bearing openings 48A, 48B extending generally horizontally through the body section 42 between opposing left and right vertical surfaces 42c, 42d of the body section 42, each opening 48A or 48B being configured to receive and slidably support a portion of a first guide member 76, as described below.
  • each base body 38 has two circular through-holes 49 and a separate spherical bearing 50 disposed within each through hole 49, such that the bearing openings 48A, 48B are provided by the spherical bearings 50.
  • the body through-holes 49 may each be sized to directly support each guide member 76, thus providing one bearing opening 48A or 48B, or the base portions 20A, 20B may each include one or two separate bearings (none shown) mounted at another appropriate location on the associated body 38, such as being attached to the front or rear vertical surfaces 42b, 42a, respectively, or upper or lower horizontal surfaces 42e, 42f, respectively.
  • a slotted relief opening 46 extends between the upper surface 42e of each body section 42 and the upper bearing opening 48A thereof.
  • Each relief opening 46 provides space for a limited vertical displacement, relative to the base body 38, of the spherical bearing 50 disposed within the upper opening 48A, which is necessary when the two base portions 20A, 20B are displaced vertically relative to each other, as discussed in further detail below.
  • each base body 38 also includes a generally rectangular, central through-hole 54 extending horizontally through the body main section 42 between the left and right vertical side surfaces 42c, 42d and is located vertically between the bearing openings 48.
  • the central hole 54 provides clearance space to enable the first and second horizontal actuators 19, 21, respectively, to extend through both base portions 20A, 20B, as discussed below.
  • the outer end 19a of the first horizontal actuator 19 is preferably pivotally mounted to the outer base portion 20B by means of a pivot pin 56 disposed within the body central hole 54, also as discussed further below.
  • the body main section 42 of the outer base portion 20B has a pair of aligned openings 55 extending into the central hole 54, one extending from the front surface 42a and the other extending from the rear vertical surface 42b.
  • the pin 56 is installed through the two openings 55 and extends through the actuator inner end 19a to rotatably connect the first horizontal actuator 19 to the outer base portion 20B.
  • each base body 38 has a pair of upper and lower horizontal wall sections 58 extending outwardly from the main section rear vertical surface 42b and connected together by a vertical wall section 60 spaced horizontally from the main section 42.
  • Each horizontal wall section 58 has a through-hole 59 each vertically aligned with the other hole 59 and configured to receive a portion of the slide post 40.
  • each slide post 40 is preferably connected with the associated base body 38 by inserting the upper end 40a of the post 40 through both of the openings 59, the post 40 being retained therein either by friction fit with the openings 59, by weldment material or by any other appropriate means.
  • the connective section 44 also includes a mounting tab 62 extending outwardly from the vertical wall section 60 and having a through-hole 63.
  • the mounting tab through-hole 63 is configured to receive a portion of a vertical actuator 16 to connect the actuator 18 with the base 12, as discussed in further detail below.
  • each base body 38 is formed as a single cast block, but may alternatively be formed of two or more separately connected pieces, such as a plurality of attached plates or bars.
  • the base body 38 may be formed in any other appropriate manner, such as a solid block or a frame providing the main section 38, with separate bearings or brackets configured to mount the horizontal actuator(s) 18 and another bracket configured to connect with at least a vertical actuator 16 and preferably also with the main screed 3.
  • the slide post 40 of each base portion 20A, 20B is preferably formed as an elongated circular cylindrical bar 64 having an upper end 65 fixedly attached to the base body and a lower end 66 movably attached to the main screed 3.
  • the bar upper end 65 extends through the two holes 59 in the connective section 42 of the associated base body 38 and the bar lower end 66 is slidably disposed within a tubular bearing 35 of the main screed mounting portion 8.
  • the slide posts 40 may each be alternatively fixedly or immovably attached to the main screed 3 and slidably disposed in a bearing opening(s) in the base body 38 (structure not shown).
  • cylindrical bar 64 may have any other appropriate cross-sectional shape, such as for example ovular or rectangular, or the slide post 40 may be a multi-piece fixed or telescoping member (none shown).
  • the base portions 20A, 20B may each be constructed without a slide post 40 or any other member for directly connecting the base 12 with the main frame 3, such that the extension screed 10 is then connected to the main screed 3 merely by the two or more vertical actuators 16.
  • the base 12 is preferably formed of two horizontally spaced-apart base portions 20A, 20B, the base 12 may be formed in any other appropriate manner.
  • the base 12 may be formed of two separate portions pivotally connected by a joint, linkage or other appropriate means to enable relative vertical displacement of the two base portions, such that the base 12 is "articulating" (structure not shown).
  • the base 12 may be formed of a single member, a truss, a box frame or another appropriate frame or assembly of members that is generally rigid and pivotally and/or displaceably connectable with the main screed 3 (none shown).
  • Such a single piece base 12 may have a slidable pivot connection such that the base 12 is capable of vertically and pivotally displacing.
  • the scope of the present invention includes these and all other appropriate structures of the base 12 that enable the extension screeds 10 to function in accordance with the appended claims.
  • the extension screed assembly 10 includes two vertical actuators 16, specifically a first, inner actuator 17A preferably connected with the inner base portion 20A and a second, outer actuator 17B preferably connected with the outer base portion 20A.
  • each vertical actuator 17A, 17B has a "movable" portion 68 attached to the associated portions 20A, 20B of the base 12 and a "fixed" portion 70 mounted to the main screed 3, i.e., so as to be immovable with respect to the main screed 3.
  • the movable portions 68 are each vertically displaceable with respect to the fixed portion 70, and thus with respect to the main screed 3, along a vertical axis 69 so as to displace the extension screed 10 as described in detail below.
  • Each movable portion 68 is preferably the rod 72 of a hydraulic cylinder 74, as discussed in further detail below, but may alternatively be the movable or "output" component of any other appropriate linear or rotary actuator, as discussed below.
  • the movable portions 68 may be attached to the main screed 3 and the fixed portions 70 (e.g., cylinders 74) may be mounted on the base 12, such that relative displacement of the movable portions 68 displaces the "fixed" portions 70 and thereby also displaces the base 12.
  • the two vertical actuators 17A, 17B preferably function to vertically displace and/or pivot the extension screed 10 relative to the main screed 3 in the following manner.
  • the two actuator movable portions 68 are each displaced a substantially equal vertical distance d O with respect to the main screed 3, the base 12, and thus the carriage 14, is substantially linearly displaced vertically (i.e., without rotation) with respect to the main screed 3, as shown in Fig. 14.
  • the base 12 and carriage 14 are pivotally displaced with respect to the main screed 3 within a generally vertical plane P V extending through the extension screed 10, as shown in Fig. 15.
  • the base 12 also pivots within the plane P V when one actuator movable portion 68 is held stationary while the other actuator movable portion 68 is displaced either upwardly or downwardly. In either case, pivotal displacement of the base 12 with respect to the main screed 3 adjusts a slope angle As between the associated extension screed plate working surface 11a and the proximal main screed plate working surface 4a.
  • the two vertical actuators 16 are each preferably a linear actuator and most preferably a hydraulic cylinder 74 having a cylinder body 75 mounted to the main screed 3 and a displaceable (i.e., extendable and retractable) rod 72 attached to the base 12. More specifically, the cylinder body 75 is inserted through the upper and lower openings 37, 39, respectively, in one pair of bracket sections 32 of the mount 8 of one screed frame half 7, such that the lower end 75a of the body 75 rests against a horizontal wall 7c of the particular main screed frame half 7.
  • the free end 72a of the rod 72 is inserted through the opening 63 of the mounting tab 62 of one of the base portions 20A or 20B and retained therein by appropriate means, such as by a pin, so as to thereby connect the actuator 16 to the base 12.
  • the vertical actuators 16 are each fluidly connected with a source of hydraulic fluid, a pump and at least one control valve by means of a hydraulic circuit (none shown), each hydraulic component being mounted at an appropriate location on the extension screed 10 and/or the main screed 3.
  • the vertical actuators 16 may be provided by any other type of actuator capable of vertically displacing the base 12 with respect to the main screed 3.
  • the vertical actuators 16 may each be provided by a motor driven screw, a solenoid, a slider-crank mechanism, a rack-and-pinion mechanism, a three-bar or four-bar linkage mechanism, a pneumatic cylinder, a solenoid, etc, such that the actuator movable portion 68 is provided by the "nut" or other threaded hole component of a motor-screw actuator, the rack of a rack-and-pinion mechanism, the slider of a slider crank mechanism, the rod of a solenoid, etc. (none shown).
  • the extension screed 10 may include three or more vertical actuators 16 (not shown). The present invention includes these and all other configurations of the vertical actuators 16 that enable the extension screed 10 to function generally as described herein.
  • the carriage 14 preferably includes first and second sections 22 and 24, respectively, specifically the inner rectangular frame 26 disposed about the base 12 and the outer rectangular frame 28 disposed at least partially about the inner frame 26.
  • the extension screed 10 further comprises at least one and most preferably two first elongated guide members 76 movably connecting the first carriage section 22 with the base 12 and at least one and most preferably two second guide members 78 movably connecting the second carriage section 24 with the first carriage section 22 (and with the base 12).
  • Each first guide member 76 is attached to the inner frame 26 and is slidably connected with the base 12, such that the guide members 76 linearly displace with respect to the preferred base portions 20A, 20B when the first horizontal actuator 19 moves the first carriage section 22, as discussed in further detail below.
  • the first guide members 76 each include an elongated tubular body 77 having opposing ends 77a, 77b attached to facing inner surfaces 26a, 26b of the inner frame 26, as discussed below, and extending through one pair of the aligned bearing openings 48A or 48B in the base portions 20A, 20B, preferably provided by the central bore of a separate one of the spherical bearings 50.
  • the tubular bodies 77 When the first carriage section 22 is displaced with respect to the base 12, the tubular bodies 77 slidably displace through the two base portions 20A, 20B, thereby guiding the horizontal linear displacement of the entire carriage 14 with respect to the base 12.
  • the tubular bodies 77 are pivotable with respect to the base portions 20A, 20B, which are restricted to vertical displacement by the slide posts 40, thereby enabling the first frame 26 (and thus the entire carriage 14), to pivot about the base 12.
  • each of the second guide members 78 is attached to the outer frame 28 and is movably connected with a separate one of the first guide members 76, such that each guide member 78 linearly displaces with respect to the connected first guide member 76 when the second horizontal actuator 21 moves the second carriage section 24, as described in detail below.
  • the second guide members 78 each include an elongated post 79 slidably disposed at least partially within the tubular body 77 of the associated first guide member 78 and having a free end 79a attached the outer frame 28.
  • the two guide posts 79 each telescopingly displace with respect to the tubular body 77 of the connected first guide member 76, to thereby guide the horizontal linear displacement of the second carriage section 24 with respect to the base 12.
  • the extension screed 10 of the present invention preferably includes the two guide members 76, 78, and preferably a pair of each of the two types of guide members 76 and 78
  • the carriage 14 may alternatively include only a single member 78 and a single second guide member 78 connected therewith or three or more pairs of first and second guide members 76 and 78. Further, the carriage 14 may be alternatively constructed without any guide members 76 or 78 and be guided by portions of the inner frame 26 and/or outer frame 28.
  • the first or inner frame 26 is preferably formed as a generally rectangular box 80 having an open rear end 80a and defining or bounding the generally hollow interior space S 1 of the frame 26 (discussed above).
  • the first frame interior space S 1 is sized to contain the preferred two base portions 20A, 20B, the first guide members 78, the first horizontal actuator 19 and a major portion of the second horizontal actuator 21, as discussed above and in further detail below.
  • the first frame box 80 includes five wall sections or walls: top and bottom walls 81 and 82, respectively, inner and outer side walls 83 and 84, respectively, and a front wall 85.
  • the top and bottom walls 81 and 82 each extend generally horizontally and generally parallel with the other wall 82 or 81 and each has an outer surface 81a, 82a, respectively, slidably contactable with portions of the outer frame 28.
  • the two walls 81 and 82 each function as a separate one of a pair of rails 87 for supporting telescoping movement of the outer frame 28 with respect to the inner frame 26, as discussed above and in further detail below.
  • the front wall 85 extends generally vertically between the front edges (not indicated) of the top and bottom walls 81, 82 and generally horizontally between the front edges (not indicated) of the two side walls 83, 84.
  • the front wall 85 functions to cover or enclose the open rear end 80a of the frame box 80 and to connect the top and bottom walls 81 and 82.
  • the top wall 81, the bottom wall 82 and the front wall 85 are all provided by a single, generally C-shaped plate 88 that further includes two vertical lips 89 extending from inwardly from the rear edges of the top and bottom walls 81, 82, respectively.
  • the preferred inner frame box 80 may alternatively be constructed of three separate plates each providing one of the walls 81, 82, and 83 or the box 80 may be formed without a front wall 85 and having two separate plates, bars, etc., providing the top and bottom walls 81 and 82 (neither alternative shown).
  • each side wall 83 and 84 each extend generally vertically and generally parallel with the other side wall 85, 84, respectively, and also generally perpendicular with respect to the top and bottom walls 81 and 82 and with respect to the front wall 85.
  • Each side wall 83 and 84 is preferably formed as a generally flat, generally rectangular plate 90 and are each attached to the C-shaped plate 88 proximal to a separate side edge 88a, 88b thereof.
  • the two side walls 84, 85 are configured to support portions of the two preferred horizontal actuators 19 and 21 and the two preferred first guide members 76, as described below.
  • each side wall plate 90 includes two generally tubular support collars 92 each disposed in a separate one of two vertically-spaced circular openings 94 and sized to receive a tubular end 77a of one of the first guide members 76.
  • the support collars 92 in each side wall 83, 84 are each generally aligned with one collar 92 in the other side wall 84, 83, respectively, such that each horizontally-spaced pair of aligned collars 92 support one of the two first guide members 76, and thereby connects the member 76 with the first frame 26.
  • the inner side wall 83 includes a circular mounting plate 96 disposed generally between the two collars 92 configured to attach a rod end 158a of the preferred first horizontal actuator 19 (as discussed below) to the inner frame 26. More specifically, the plate 96 has an inner surface 96a against which the first actuator rod end 158a is abutted and a through-hole 97 sized to permit insertion of threaded fastener (not indicated) through the plate 96 so as to engage with a threaded hole (not indicated) in the rod 158, and thereby removably connect the first actuator 19 to the first frame 26 of the carriage 14.
  • the inner side wall plate 90 also has a plurality of mounting holes 98 located proximal to the attachment plate 96 sized and arranged to enable a base end 157a of the preferred second actuator 21 (described below) to be attached to the first frame 26 by means of threaded fasteners (not indicated) inserted through the holes 98.
  • the outer side wall 84 includes an annular bearing plate 99 disposed generally between the two collars 92 of the side wall 84 and having a bearing opening 99a sized to receive and slidably support a rod 159 of the preferred second horizontal actuator 21, as discussed below.
  • the second horizontal actuator 21 extends generally between the two side walls 83, 84 of the inner frame 26 and into the outer frame 28.
  • the second or outer frame 28 of the second carriage section 24 preferably includes an upper, carrier subframe 27 slidably connected with the first, inner frame 26 and a lower, screed support subframe 29 attached to the carrier subframe 29.
  • the carrier subframe 27 is preferably formed as a generally rectangular box 100 having an open rear end 100a and an open inner side end 100b, the box 100 bounding the second frame interior space S 2 , as mentioned above.
  • the second frame box 100 is sized larger than the first frame box 80 such that the first, inner frame 26 is receivable within the second frame interior space S 2 .
  • the outer frame 28 linearly displaces with respect to the inner frame 26 by slidably displacing about the inner frame box 80 along the axis 25 such that greater or lesser portions, depending on the direction of the displacement, of the inner frame 26 are disposed within the second frame interior space S 2 , as described in further detail below.
  • the outer frame box 100 includes four wall sections or walls: top and bottom walls 101, 102, respectively, an outer side wall 104 and a front wall 105.
  • the top and bottom walls 101 and 102 each extend generally horizontally and generally parallel with the other wall 102, 101 and are spaced apart by a greater vertical distance (not indicated) than the vertical spacing distance (not indicated) between the top and bottom walls 81, 82 of the inner frame box 80.
  • the top and bottom walls 101, 102 each have an inner contact surface 106 slidably contactable with the outer surfaces 81a, 82a of the top and bottom walls 81, 82, respectively, of the inner frame 26.
  • the two walls 101, 102 function as slide members 107 that slidably displace against the rail members 87 of the inner frame 26 when the second carriage section outer frame 28 displaces with respect to the first carriage section inner frame 26 (and with respect to the base 12).
  • the inner frame 26 preferably at least partially supports the weight of the second carriage section 26.
  • the contact surfaces 106 of the outer frame top and bottom walls 101 and 102 are provided by a separate bearing pad 111 attached to the wall inner surfaces 101a, 102a, but may alternatively by provided directly by the wall inner surfaces 101a, 102a.
  • the bottom wall outer of lower surface 102b is configured to attach the screed plate subframe 29 to the carrier subframe 27, preferably through various components (hydraulic cylinders, adjusting screws, etc. - none shown) for pivoting the screed plate subframe 29 with respect to the carrier subframe 27, and thereby to the carriage 14, as described in further detail below.
  • the front wall 105 extends generally vertically between the front edges (not indicated) of the top and bottom walls 101, 102 and generally horizontally between the box open side end 100b and the front edge 104a of the outer side wall 104.
  • the front wall 105 functions to cover or enclose the front end of the frame box 100 and to connect the top and bottom walls 101 and 102.
  • the top wall 101, the bottom wall 102 and the front wall 105 are all provided by a single, generally C-shaped plate 108 that further includes two vertical lips 109 extending from inwardly from the rear edges of the top and bottom walls 101, 102, respectively.
  • the preferred outer frame box 100 may alternatively be constructed of three separate plates each providing one of the walls 101, 102, and 105 or the box 100 may be formed without a front wall 105 and having two separate plates, bars, etc., providing the top and bottom walls 101, 102 (neither alternative shown).
  • the outer side wall 104 extends generally vertically and generally parallel with the outer side or end wall 85 of the inner frame 26 (i.e., when the frames 26 and 28 are assembled together) and also extends generally perpendicularly with respect to the top and bottom walls 101 and 102 and with respect to the front wall 105.
  • the side wall 104 is preferably formed as a generally flat, generally rectangular plate 112 attached to the C-shaped plate 108 proximal to the plate outer side edge 108a.
  • the side wall 104 is configured to support a portion of the preferred second horizontal actuator 21 and the two preferred second guide members 78.
  • the side wall 104 includes two generally circular mounting flanges 114 each disposed in a separate one of two vertically-spaced circular openings 116 in the plate 112 and configured to attach a separate one of the two second guide members 78 to the outer frame 28. More specifically, each mounting flange 114 has a plurality of spaced apart holes (not indicated) through each which is inserted a threaded fastener (not indicated) engageable with the free end of the guide posts 79 to attach the two guide posts 79 to the outer frame 28.
  • the outer side wall 104 includes a circular mounting plate 120 disposed generally between the two mounting flanges 114 and configured to attach a rod end 159a of the preferred second horizontal actuator 21 (as discussed below) to the inner outer frame 26. More specifically, the mounting plate 120 has an inner surface 120a against which the second actuator rod end 159a is abutted and a through-hole 121 sized to permit insertion of threaded fastener (not indicated) through the plate 120 so as to engage with a threaded hole (not indicated) in the rod 159, and thereby removably connect the second actuator 21 to the outer frame 28 of the carriage 14.
  • the screed support subframe 29 is preferably formed as an elongated, generally rectangular box 124 having a lower mounting surface 125 configured to support a screed plate 11.
  • the subframe box 124 includes a generally horizontal bottom wall 128 generally vertical and parallel front and rear walls 130, 132, respectively, and generally vertical and parallel inner and outer side walls 134, 136, respectively.
  • the screed support subframe 29 is preferably attached to the carrier subframe 27, specifically to the bottom wall 102, by at least at least one hinge and at least one actuator (neither shown) for pivoting the subframe 29 and screed plate 11 relative to the remainder of the carriage 14, but may alternatively be fixedly connected to the carrier subframe by any appropriate means.
  • the bottom wall 128 has a lower surface 128a against which the upper surface of the screed plate 11 is disposeable, such that the screed plate 11 is mountable to the carriage 14 by a plurality of threaded posts (not shown) of the screed plate 11 being inserted through a plurality of corresponding openings (not shown) in the bottom wall 128.
  • the subframe front wall 126 is configured to attach a strike-off plate 140 to the carriage 14 and functions to prevent paving material from depositing on the upper surface 128b of the bottom wall 128.
  • the subframe 29 is preferably formed as described above, the subframe may be formed in any other appropriate manner, such as a rectangular box having open front and rear ends, or the carriage 14 may be constructed without a support subframe and with the screed plate 11 being directly mounted to the outer frame 28 or connected to the outer frame 28 by appropriate means, such as one or more mounting brackets or mounting spacer plates (no alternatives shown).
  • the carriage 14 is preferably formed of two sections 22, 24 that include inner and outer frames 26, 28, respectively, it is within the scope of the present invention to construct the carriage 14 in any other appropriate manner.
  • the inner and outer carriage sections 22, 24 may each be formed with an appropriate structure other than as a rectangular box frame as described above, such as a skeletal truss, a single "backboard" member or plate, a solid bar or beam, etc., of any appropriate shape (no alternatives shown).
  • the carriage 14 may include only a single section (i.e., as opposed to inner and outer sections) of any appropriate construction, connectable with the base 12 and configured to support the screed plate 11.
  • the scope of the present invention encompasses these and all other appropriate structures of the carriage 14 capable of supporting the screed plate 11 and enabling the extension screed 10 to function generally as described herein.
  • the two horizontal actuators 18 each preferably include a first, fixed portion 150, preferably connected with the base 12 and a second, movable portion 152 connected with either the first carriage section 22 or the second carriage section 24 and displaceably connected with the fixed portion 150.
  • displacement of each actuator movable portion 152 with respect to the corresponding actuator fixed portion 150 displaces the carriage section 22 or 24 with respect to the base portion 12.
  • each one of the first and second actuators 19 and 21, respectively is a hydraulic cylinder 154, 155, respectively, that includes a cylinder body 156, 157 and a piston rod 158, 159, respectively, disposed at least partially within the respective cylinder body 156 and 157.
  • the piston rods 158 and 159 are displaceable, i.e., extendable or retractable, with respect to the connected body 156, 157 along a separate cylinder axis 160, 161, respectively, so as to displace the connected frame 26, 28, respectively, as discussed above and in further detail below.
  • the horizontal actuators 18 are each fluidly connected with a source of hydraulic fluid, a pump and at least one control valve by means of a hydraulic circuit (none shown), each hydraulic component being mounted at an appropriate locations on the extension screed 10 or on the main screed 3.
  • the cylinder body 156 of the first horizontal actuator 19 has a base end 156a disposed within the central through-hole 54 of the outer base portion 20B and pivotally attached therewithin by the pin 56 as described above.
  • the actuator body 156 extends from the outer base portion 20B and into the central through-hole 54 of the inner base portion 20A and the actuator rod 158 extends to the inner side wall 83 of the inner frame 26 and is attached to the mounting plate 96 described above.
  • the second actuator body 157 has a base end 157a attached the inner frame inner side wall 83, preferably by fasteners inserted through the mounting holes 98, and an inner end 157b is disposed against the bearing plate 99, the second actuator body 157 being spaced vertically generally below the first actuator body 156.
  • the second actuator rod 159 extends through the bearing plate 99, horizontally across the second frame interior space S 2 and has an outer end 159a attached to the mounting plate 120 on the outer frame outer side wall 105 as described above.
  • the first and second horizontal actuators 19 and 21 are spaced apart vertically such that the two rod axes 160 and 161 are generally disposed in a common vertical plane, preferably plane P V as discussed above and depicted in Fig. 15
  • the two horizontal actuators 18 are preferably hydraulic cylinders 154, 155, either or both of the first and second actuators 19 and 21 may be provided by any other type of actuator capable of horizontally displacing the carriage 14 with respect to the base 12, and thus the main screed 3.
  • the horizontal actuators 18 may each be provided by a motor driven screw, a solenoid, a slider-crank mechanism, by a rack-and-pinion mechanism, a three-bar or four-bar linkage mechanism, a pneumatic cylinder, a solenoid, etc, such that the actuator movable portion 152 is provided by the "nut" or other threaded hole component of a motor-screw actuator, the rack of a rack-and-pinion mechanism, the slider of a slider crank mechanism, the rod of a solenoid, etc.
  • the extension screed 10 may include only a single horizontal actuator 18, such as if the carriage 14 included only a single frame (not shown), or may include three or more horizontal actuators 18. The present invention includes these and all other configurations of the horizontal actuators 18 that enable the extension screed 10 to function generally as described herein.
  • the preferred horizontal actuators 19, 21 function to displace the first and second carriage sections 22, 24, respectively, generally in the following manner.
  • the rod 159 of the second horizontal actuator 21 is extendable outwardly along the rod axis 161 so as to push the second frame 28, and thus the screed plate 11, to displace with respect to the first frame 26 in the outward horizontal direction H O and generally away from the screed centerline 1a.
  • the rod 158 of the first horizontal actuator 19 is retractable along the rod axis 160 so as to pull the first frame 28, and thus also the second frame 28 and thereby screed plate 11, to displace with respect to the base 12 in the outward horizontal direction Ho and generally away from the screed centerline 1a.
  • the extension screed 10 may be extended by first using the first horizontal actuator 19 to displace the entire carriage 14 outwardly and then using the second horizontal actuator 21 to displace the second carriage section 24 outwardly, each separate movement being implemented as described above.
  • the first horizontal actuator 19 is extendable along the rod axis 160 so as to push the first frame 26 (and thus second frame 28) to displace in the inward horizontal direction H I and generally toward the screed centerline 1a.
  • the second horizontal actuator 21 is retractable along the rod axis 161 so as to pull the second frame 28 to displace in the inward horizontal direction H I and generally toward the screed centerline 1a, such that the carriage outer end 14a is located proximal to the outer end of the main screed 3.
  • the extension screed 10 may be retracted by first using the second horizontal actuator 21 to displace the second carriage section 24 inwardly and then using the first horizontal actuator 19 to displace the entire carriage 14 inwardly, each separate movement being implemented as described above.
  • the vertical actuators 16 may be used to pivot or slope the extension screed 10 with respect to the main screed 3, and thereby adjust the angle A s between the extension screed plate working surface 11a with respect to the main screed plate working surface 4a, in the manner described above and depicted in Fig. 15.
  • the two carriage frames 26 and 28 each displace along a common axis 25.
  • the extension screed assembly 10 preferably further includes a control system 160 configured to automatically operate the two or more vertical actuators 16 and the one or more horizontal actuators 18 so as to automatically and remotely position the extension screed 10 relative to the main screed 1.
  • the control system 160 includes a controller 162, preferably located in the operator station 9 on the main screed 3, a plurality of control valves (none shown) each controlling hydraulic flow into a separate one of the preferred hydraulic actuators 17A, 17B, 19 and 21 and one or more position sensors (none shown) configured to determine the actual position of the actuator rods 72, 158 and 159 or the frames 26, 28.
  • the control system 160 enables a screed operator to automatically linearly displace and/or pivotally displace the base 12 and/or the carriage 14, and thereby also displace the extension screed plate 11, to a desired position with respect to the main screed 3.

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Claims (26)

  1. Abgleichbohlenanordnung (1) für ein Straßenfertigungsfahrzeug (2), wobei die Abgleichbohlenanordnung eine Hauptabgleichbohle (3) mit einer Abgleichbohlenplatte (4) und einer Erweiterungsabgleichbohle (10) aufweist, wobei die Erweiterungsabgleichbohle aufweist:
    eine Basis (12), die beweglich mit der Hauptabgleichbohle (3) verbunden ist,
    einen Schlitten (14), der beweglich mit der Basis (12) verbunden und zum Tragen einer Erweiterungsabgleichbohlenplatte (11) gestaltet ist, wobei jede der Haupt- und der Erweiterungsabgleichbohlenplatten (4, 11) eine untere horizontale Arbeitsoberfläche (4a, 11a) aufweist,
    ein horizontales Stellglied (18, 19, 21), das mit der Basis (12) verbunden ist und zum linearen Verstellen des Schlittens (14) bezüglich der Basis (12) in entgegengesetzten, allgemein horizontalen Richtungen (HO, HI) gestaltet ist, so dass die horizontale Position der Erweiterungsabgleichbohle (11) bezüglich der Hauptabgleichbohlenplatte (4) eingestellt wird, und
    ein erstes vertikales Stellglied (17A), das mit der Hauptabgleichbohle (3) und mit der Basis (12) verbunden ist, wobei das erste vertikale Stellglied (17A) zum linearen Verstellen der Basis (12) und des Schlittens (14) bezüglich der Hauptabgleichbohle in entgegengesetzten, allgemein vertikalen Richtungen (VD, VU) gestaltet ist, so dass die Anhebeposition der Erweiterungsabgleichbohlenplatte bezüglich der Hauptabgleichbohlenplatte (11) eingestellt wird,
    dadurch gekennzeichnet, dass:
    ein zweites vertikales Stellglied (17B) mit der Hauptabgleichbohle (3) und mit der Basis (12) verbunden ist, wobei das erste und das zweite vertikale Stellglied (17A, 17B) zum linearen Verstellen der Basis (12) und des Schlittens (14) bezüglich der Hauptabgleichbohle (3) in entgegengesetzten, allgemein vertikalen Richtungen (VD, VU) gestaltet sind, so dass die Anhebeposition der Erweiterungsabgleichbohlenplatte (11) bezüglich der Hauptabgleichbohlenplatte (4) eingestellt wird, und
    das erste und das zweite vertikale Stellglied (17A, 17B) zum Schwenken der Basis (12) und des Schlittens (14) bezüglich der Hautabgleichbohle (3) gestaltet sind, so dass ein Neigungswinkel (AS) zwischen der Erweiterungsabgleichbohlenplattenoberfläche (11a) und der Hautabgleichbohlenplattenoberfläche (4a) eingestellt wird.
  2. Abgleichbohlenanordnung (1) nach Anspruch 1, bei der:
    der Schlitten (14) einen ersten Abschnitt (22), der beweglich mit der Basis (12) verbunden ist, und einen zweiten Abschnitt (24), der mit zumindest einem von dem ersten Abschnitt und der Basis beweglich verbunden ist, aufweist, wobei das horizontale Stellglied (18, 19, 21) ein erstes horizontales Stellglied (19) ist und zum linearen Verstellen des ersten Schlittenabschnitts bezüglich der Basis gestaltet ist, und
    die Erweiterungsabgleichbohle (10) weiter ein zweites horizontales Stellglied (21) aufweist, das zum Verstellen des zweiten Schlittenabschnitts bezüglich des ersten Schlittenabschnitts in entgegengesetzten, allgemein horizontalen Richtungen (HO, HI) gestaltet ist.
  3. Abgleichbohlenanordnung (1) nach Anspruch 2, bei der:
    die Hauptabgleichbohle (3) eine Längsmittellinie (1a), die sich allgemein in einer Fahrtrichtung des Straßenfertigungsfahrzeugs erstreckt, aufweist und der zweite Schlittenabschnitt (24) ein Schlittenaußenende (14a), das seitlich zur Mittellinie beabstandet ist, vorsieht,
    das zweite horizontale Stellglied (21) zum Verstellen des zweiten Schlittenabschnitts gestaltet ist, so dass sich das Schlittenaußenende zwischen einer ersten horizontalen Position (P1), bei der das Schlittenaußenende eine erste senkrechte Distanz (D1) zur Mittellinie beabstandet ist, und einer zweiten horizontalen Position (P2), bei der das Schlittenseitenende eine zweite senkrechte Distanz (D2) zur Mittellinie beabstandet ist, bewegt, wobei die zweite Distanz größer als die erste Distanz ist, und
    das erste horizontale Stellglied (19) zum Verstellen des ersten Schlittenabschnitts gestaltet ist, so dass sich das Schlittenaußenende zwischen der zweiten horizontalen Position (P2) und einer dritten horizontalen Position (P3), bei der das Schlittenaußenende eine dritte senkrechte Distanz zur Mittellinie (D3) beabstandet ist, bewegt, wobei die dritte Distanz größer als die zweite Distanz ist.
  4. Abgleichbohlenanordnung (1) nach Anspruch 3, bei der die Hauptabgleichbohle (3) ein seitliches Außenende (3a), das eine vierte senkrechte Distanz (D4) zur Mittellinie (1a) beabstandet ist, aufweist, und zumindest die zweite und die dritte Distanz (D2, D3) größer als die vierte Distanz sind, so dass sich die Erweiterungsabgleichbohle (10) seitlich nach außen von der Hauptabgleichbohle erstreckt, wenn das Schlittenaußenende in einer von der zweiten horizontalen Position (P2) und der dritten horizontalen Position (P3) angeordnet ist.
  5. Abgleichbohlenanordnung (1) nach Anspruch 2, bei der der zweite Schlittenabschnitt (24) zumindest teilweise um den ersten Schlittenabschnitt (22) angeordnet ist, so dass das zweite horizontale Stellglied (21) zum teleskopartigen Verstellen des zweiten Schlittenabschnitts bezüglich des ersten Schlittenabschnitts gestaltet ist.
  6. Abgleichbohlenanordnung (1) nach Anspruch 2, bei der die Hauptabgleichbohle (3) eine Längsmittellinie (1a) aufweist, die sich in einer Fahrtrichtung des Straßenfertigungsfahrzeugs erstreckt, die Erweiterungsabgleichbohle (10) eine Mittelachse (25) aufweist, die sich durch die Basis (12) und den Schlitten (14) und allgemein senkrecht bezüglich der Mittellinie erstreckt, das erste Stellglied (19) zum Verstellen des Schlittens allgemein entlang der Mittelachse gestaltet ist und das zweite horizontale Stellglied (21) zum Verstellen des zweiten Schlittenabschnitts (24) allgemein entlang der Mittelachse gestaltet ist.
  7. Abgleichbohlenanordnung (1) nach Anspruch 2, mit weiter:
    einem ersten gestreckten Führungsbauteil (76), das an dem ersten Schlittenabschnitt (22) befestigt und verschiebbar mit der Basis (12) verbunden ist, so dass es den ersten Schlittenabschnitt beweglich mit der Basis (12) verbindet, wobei das erste Führungsbauteil zum linearen Verstellen bezüglich der Basis (12) angepasst ist, wenn das erste horizontale Stellglied (19) den ersten Schlittenabschnitt bewegt, und
    einem zweiten gestreckten Führungsbauteil (78), das an dem zweiten Schlittenabschnitt (24) befestigt und mit dem ersten Führungsbauteil beweglich verbunden ist, so dass es den zweiten Schlittenabschnitt beweglich mit dem ersten Schlittenabschnitt verbindet, wobei das zweite Führungsbauteil zum linearen Verstellen bezüglich des ersten Führungsbauteils angepasst ist, wenn das zweite horizontale Stellglied den zweiten Schlittenabschnitt bewegt.
  8. Abgleichbohlenanordnung (1) nach Anspruch 7, bei der die Basis (12) eine Lageröffnung (48A, 48B) aufweist und das erste Führungsbauteil (76) verschiebbar innerhalb der Basislageröffnung angeordnet ist.
  9. Abgleichbohlenanordnung (1) nach Anspruch 7, bei der eines von dem ersten und dem zweiten Führungsbauteil (76, 78) einen gestreckten rohrförmigen Körper (77) aufweist und das andere von dem ersten und dem zweiten Führungsbauteil eine gestreckte Stange (79) aufweist, die zumindest teilweise in dem rohrförmigen Körper verschiebbar angeordnet ist, so dass die Stange zum teleskopartigen Verstellen bezüglich des rohrförmigen Körpers angepasst ist, wenn der zweite Schlittenabschnitt (24) bezüglich des ersten Schlittenabschnitts (22) verstellt wird.
  10. Abgleichbohlenanordnung (1) nach Anspruch 2, bei der der erste Schlittenabschnitt (22) ein Schienenbauteil (87) aufweist und der zweite Schlittenabschnitt (24) ein Gleitbauteil (107) aufweist, das auf dem Schienenbauteil verschiebbar angeordnet ist, so dass der erste Schlittenabschnitt zumindest teilweise das Gewicht des zweiten Schlittenabschnitts trägt und das Gleitbauteil angepasst ist, auf der Schiene verschoben zu werden, wenn der Schlittenabschnitt bezüglich der Basis verstellt wird.
  11. Abgleichbohlenanordnung (1) nach Anspruch 2, bei der das erste und das zweite horizontale Stellglied (19, 21) jeweils eine Mittelachse (160, 161) aufweisen, der erste Schlittenabschnitt (22) entlang der ersten Stellgliedachse (160) verstellbar ist und der zweite Schlittenabschnitt entlang der zweiten Stellgliedachse (161) verstellbar ist, wobei die zwei Stellglieder vertikal beabstandet sind, so dass die zwei Achsen allgemein in einer gemeinsamen vertikalen Ebene (PV) angeordnet sind.
  12. Abgleichbohlenanordnung (1) nach Anspruch 2, bei die Hautabgleichbohle (3) eine Längsmittellinie (1a) aufweist, die sich allgemein in einer Fahrtrichtung des Straßenfertigers erstreckt, der erste Schlittenabschnitt (22) ein inneres Seitenende (83) aufweist und das erste horizontale Stellglied (19) ein Hydraulikzylinder (154) mit einer verstellbaren Stange (158) ist, wobei die erste Zylinderstange an dem inneren Seitenende des Schlittens derart befestigt ist, dass ein Einfahren der Stange den Schlitten (14) allgemein weg von der Mittellinie verstellt und ein Ausfahren der Stange den Schlitten allgemein in Richtung zu der Mittellinie verstellt.
  13. Abgleichbohlenanordnung (1) nach Anspruch 2, bei der:
    der erste Schlittenabschnitt (22) einen ersten Rahmen (26) aufweist, wobei der erste Rahmen zumindest teilweise einen Innenraum (S1) begrenzt, wobei die Basis (12) in dem Innenraum des ersten Rahmens angeordnet ist, und
    der zweite Schlittenabschnitt (24) einen zweiten Rahmen (28) aufweist, wobei der zweite Rahmen zumindest teilweise einen Innenraum (S2) begrenzt, wobei der erste Rahmen zumindest teilweise derart in dem Innenraum des zweiten Rahmens angeordnet werden kann, so dass der zweite Schlittenabschnitt um den ersten Schlittenabschnitt verstellbar ist.
  14. Abgleichbohlenanordnung (1) nach Anspruch 2, bei der die Basis (12) einen ersten Körper (20A) und einen zweiten Körper (20B), der horizontal von dem ersten Körper beabstandet ist, aufweist, wobei sich das erste und das zweite horizontale Stellglied (19, 21) jeweils zwischen den zwei Basiskörpem erstrecken und mit jedem von diesen verbunden sind.
  15. Abgleichbohlenanordnung (1) nach Anspruch 1, bei der sowohl das erste als auch das zweite vertikale Stellglied (17A, 17B) einen beweglichen Abschnitt (68) aufweist, der an der Basis (12) befestigt und vertikal bezüglich der Hauptabgleichbohle (3) verstellbar ist, so dass, wenn die zwei beweglichen Abschnitte des Stellglieds jeweils um eine im Wesentlichen gleiche vertikale Distanz (d0) bezüglich der Hauptabgleichbohle verstellt werden, die Basis linear vertikal bezüglich der Hauptabgleichbohle verstellt wird.
  16. Abgleichbohlenanordnung (1) nach Anspruch 15, bei der die Erweiterungsabgleichbohle (10) derart gestaltet ist, dass, wenn der bewegliche Abschnitt (68) von einem der zwei vertikalen Stellglieder (17A 17B) um eine erste vertikale Distanz (d1) bezüglich der Hauptabgleichbohle (3) verstellt wird und der bewegliche Abschnitt des anderen von den zwei vertikalen Stellgliedern um eine zweite, größere vertikale Distanz (d2) bezüglich der Hauptabgleichbohle verstellt wird, die Basis (12) schwenkend bezüglich der Hauptabgleichbohle in einer allgemein vertikalen Ebene (PV) verstellt wird.
  17. Abgleichbohlenanordnung (1) nach einem der Ansprüche 1, 15 oder 16, bei der die Basis (12) einen ersten Abschnitt (20A) und einen zweiten Abschnitt (20B) aufweist, die beiden Basisabschnitte horizontal bezüglich der Hauptabgleichbohle (3) beabstandet sind, das erste vertikale Stellglied (17A) mit dem ersten Abschnitt der Basis verbunden ist und das zweite vertikale Stellglied (17B) mit dem zweiten Abschnitt der Basis verbunden ist.
  18. Abgleichbohlenanordnung (1) nach Anspruch 17, bei der die Erweiterungsabgleichbohle (10) derart gestaltet ist, dass:
    wenn die zwei Basisabschnitte (20A, 20B) jeweils um eine im Wesentlichen gleiche Distanz (d0) bezüglich der Hauptabgleichbohle (3) verstellt werden, der Schlitten (14) linear vertikal bezüglich der Hauptabgleichbohle verstellt wird, und
    wenn einer der zwei Basisabschnitte (20A, 20B) um eine erste vertikale Distanz (d1) bezüglich der Hauptabgleichbohle verstellt wird und der andere von den zwei Basisabschnitten um eine zweite, größere vertikale Distanz (d2) bezüglich der Hauptabgleichbohle (3) verstellt wird, der Schlitten schwenkend bezüglich der Hauptabgleichbohle in einer allgemein vertikalen Ebene (PV) verstellt wird.
  19. Abgleichbohlenanordnung (1) nach Anspruch 17 oder 18, bei der die Hauptabgleichbohle (3) zwei horizontal beabstandete Montagelager (35) aufweist und sowohl der erste als auch der zweite Basisabschnitt (20A, 20B) eine Stange (40, 64) aufweist, wobei jede von den Stangen der zwei Basisabschnitte verschiebbar in einem separaten von den zwei Montagelagern zum verstellbaren Verbinden der Basis (12) mit der Hauptabgleichbohle (3) angeordnet werden kann.
  20. Abgleichbohlenanordnung (1) nach Anspruch 17, 18 oder 19, bei der sowohl der erste als auch der zweite Basisabschnitt (20A, 20B) eine Lageröffnung (48A; 48B) aufweist und die Erweiterungsabgleichbohle (10) weiter ein gestrecktes Führungsbauteil (76) aufweist, das sich durch jede der zwei Basislageröffnungen erstreckt und gegenüberliegende Enden (77a, 77b) aufweist, die an dem Schlitten (14) befestigt sind, so dass sie den Schlitten mit der Basis (12) verbinden, wobei das Führungsbauteil zum verschiebbaren Verstellen durch die zwei Basislageröffnungen gestaltet ist, wenn das horizontale Stellglied (18, 19, 21) den Schlitten bezüglich der Basis verstellt.
  21. Abgleichbohlenanordnung (1) nach einem der Ansprüche 1 bis 18, bei der die Hauptabgleichbohle (3) ein Montagelager (35) aufweist und die Basis (12) eine Stange (40, 64) aufweist, die in dem Montagelager zum verstellbaren Verbinden der Basis mit der Hauptabgleichbohle (3) angeordnet werden kann.
  22. Abgleichbohlenanordnung (1) nach einem der Ansprüche 1 bis 16, bei der die Basis (12) zwei Basisabschnitte (20A, 20B) aufweist, die horizontal beabstandet sind, wobei jeder Basisabschnitt mit der Hauptabgleichbohle (3) verstellbar verbunden ist und mit dem Schlitten (14) verbunden ist.
  23. Abgleichbohlenanordnung (1) nach Anspruch 1, bei der der Schlitten (14) einen ersten inneren Schlittenabschnitt (22), der um die Basis (12) angeordnet ist, und einen zweiten äußeren Schlittenabschnitt (24), der zumindest teilweise um den inneren Schlittenabschnitt verschiebbar angeordnet und bezüglich des ersten Schlittenabschnitts verstellbar ist, aufweist.
  24. Abgleichbohlenanordnung (1) nach Anspruch 1, bei der:
    der Schlitten (14) einen ersten Rahmen (22), der mit der Hauptabgleichbohle (3) beweglich verbindbar ist, und einen zweiten Rahmen (24), der mit dem ersten Rahmen beweglich verbindbar und zum Tragen der Erweiterungsabgleichbohleplatte (11) gestaltet ist, aufweist, die vertikalen Stellglieder (16, 17A, 17B) zum Verstellen des ersten Rahmens in allgemein vertikalen Richtungen (VD, VU) bezüglich der Hauptabgleichbohle gestaltet sind, und
    das horizontale Stellglied (18, 19, 21) ein erstes horizontales Stellglied (19), das zum Verstellen des ersten Rahmens in allgemein horizontalen Richtungen (HO, HI) bezüglich der Hauptabgleichbohle gestaltet ist, und ein zweites horizontales Stellglied (21), das zum Verstellens des zweiten Rahmens bezüglich des ersten Rahmens in den allgemein horizontalen Richtungen (HO, HI) gestaltet ist, aufweist.
  25. Abgleichbohlenanordnung (1) nach Anspruch 24, bei der die Basis (12) in dem ersten Rahmen (22) angeordnet und mit diesem verbunden ist, wobei die vertikalen Stellglieder (16, 17A, 17B) zum vertikalen Verstellen der Basis gestaltet sind, so dass sie den ersten und den zweiten Rahmen (22, 24) vertikal verstellen.
  26. Abgleichbohlenanordnung (1) für ein Straßenfertigungsfahrzeug (2), die eine Hauptabgleichbohle (3) und eine Erweiterungsabgleichbohle (10) aufweist, wobei die Erweiterungsabgleichbohle aufweist:
    ein erstes Basisbauteil (20A), das beweglich mit der Hauptabgleichbohle (3) verbunden ist,
    einen Schlitten (14), der zum Tragen einer Erweiterungsabgleichbohlenplatte (11) gestaltet und mit dem ersten Basisbauteil (20A) verbunden ist, und
    ein erstes vertikales Stellglied (17A), das mit der Hauptabgleichbohle (3) und mit dem ersten Basiselement (20A) verbunden ist, wobei das erste vertikale Stellglied (17A) zum linearen Verstellen des ersten Basisbauteil (20A) und des Schlittens (14) bezüglich der Hauptabgleichbohle (3) in entgegengesetzten, allgemein vertikalen Richtungen (VD, VU) gestaltet ist,
    gekennzeichnet durch:
    ein zweites Basisbauteil (20B), das beweglich mit der Hauptabgleichbohle (3) verbunden ist und mit dem Schlitten (14) verbunden ist, und
    ein zweites vertikales Stellglied (17B), das mit der Hauptabgleichbohle (3) und mit dem zweiten Basisbauteil (20B) verbunden ist, wobei das erste und das zweite vertikale Stellglied (17A, 17B) zum linearen Verstellen des ersten und des zweiten Basisbauteils (20A, 20B) und des Schlittens (14) bezüglich der Hauptabgleichbohle (3) in entgegengesetzten, allgemein vertikalen Richtungen (VD, VU) gestaltet sind, und
    bei der der Schlitten (14) mit sowohl dem ersten als auch dem zweiten Basisbauteil (20A, 20B) derart verbunden ist, dass die zwei vertikalen Stellglieder (17A, 17B) zum wahlweise Schwenken des ersten und des zweiten Basisbauteils (20A, 20B) und des Schlittens (14) bezüglich der Hauptabgleichbohle (3) in einer allgemein vertikalen Ebene (PV) gestaltet sind.
EP04718171A 2003-03-07 2004-03-05 Ausziehbohle für strassenfertiger Expired - Fee Related EP1604066B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07016652.5A EP1854921B9 (de) 2003-03-07 2004-03-05 Ausziehbohle für einen Straßenfertiger

Applications Claiming Priority (3)

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US45288303P 2003-03-07 2003-03-07
US452883P 2003-03-07
PCT/US2004/007196 WO2004081287A1 (en) 2003-03-07 2004-03-05 Extension screed for a paving vehicle

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP07016652.5A Division EP1854921B9 (de) 2003-03-07 2004-03-05 Ausziehbohle für einen Straßenfertiger

Publications (2)

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EP1604066A1 EP1604066A1 (de) 2005-12-14
EP1604066B1 true EP1604066B1 (de) 2007-10-10

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US (1) US7651295B2 (de)
EP (1) EP1604066B1 (de)
CN (1) CN100564682C (de)
DE (1) DE602004009416T2 (de)
RU (1) RU2347033C2 (de)
WO (1) WO2004081287A1 (de)

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RU2347033C2 (ru) 2009-02-20
DE602004009416D1 (de) 2007-11-22
US7651295B2 (en) 2010-01-26
WO2004081287A1 (en) 2004-09-23
US20070258769A1 (en) 2007-11-08
DE602004009416T2 (de) 2008-07-03
EP1604066A1 (de) 2005-12-14
RU2005131006A (ru) 2006-04-10
CN1784527A (zh) 2006-06-07
CN100564682C (zh) 2009-12-02

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